Mexico / Payroll

Mexico ISR Calculator: Monthly, Quincenal and Weekly Net Pay

Calculate sueldo neto, or take-home pay, from monthly, quincenal or weekly salary in Mexico. See the ISR bracket, employment subsidy and employee IMSS deductions for your 2026 payment date.

Mexico ISR Calculator: Monthly, Quincenal and Weekly Net Pay: Uses the updated 2026 SAT tariffs for the selected pay period. It shows the lower limit, excess, marginal rate and fixed quota before applying any employment subsidy. Fixed benefits produce a daily SBC, the contribution salary, subject to the zone minimum and 25 UMA ceiling. An entered SBC replaces that estimate. Results are estimates for ordinary private-sector workers and exclude collective agreements, court awards, special regimes and annual tax reconciliation. Runs 100% locally in your browser with zero server file uploads.

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Mexico · 2026 · MXN

Salary stays as entered when switching periods. Submonthly subsidy eligibility uses income × 30.4 ÷ period days unless you enter the actual month total; monthly payroll is reconciled at month end.

UMA: $117.31 daily, $3,566.22 monthly, $42,794.64 annually; valid 01/02/2026 to 31/01/2027.

Sueldo neto — estimated net pay$13,202.64
ItemRule and workingResult
Gross salarySelected period$15,000.00
Límite inferiorArt. 96 / Anexo 8, selected period$14,644.65
Excedente$15,000.00 − $14,644.65$355.35
Marginal rateApplied to excedente17.92%
Cuota fijaAnexo 8$1,339.14
ISR before subsidy$1,339.14 + $355.35 × 17.92%$1,402.82
Subsidy eligibility incomeCalendar-month income ceiling applies$15,000.00
Subsidio para el empleo$3,566.22 × 15.02% × 30.4 ÷ 30.4; income ceiling $11,492.66; applied up to ISR, no cash refund$0.00
ISR withheldISR minus applied subsidy$1,402.82
Integration factor1 + (15 + 12 × 25%) ÷ 3651.049315
Daily SBCIntegrated wage, zone floor $315.04, cap $2,932.75 (LSS Art. 28)$524.66
Employee IMSSSum of employee quotas below$394.55
Net pay$15,000.00 − $1,402.82 − $394.55$13,202.64
IMSS branchDaily base × daysEmployeeEmployer
Enfermedad y maternidad — fixedLSS Art. 106 I; nineteenth transitional article$117.31 × 300% → $0.0020.4% → $717.94
Enfermedad y maternidad — excessLSS Art. 106 II; nineteenth transitional article$172.73 × 300.4% → $20.731.1% → $57.00
Prestaciones en dineroLSS Art. 107$524.66 × 300.25% → $39.350.7% → $110.18
Gastos médicos pensionadosLSS Art. 25$524.66 × 300.375% → $59.021.05% → $165.27
Invalidez y vidaLSS Art. 147$524.66 × 300.625% → $98.371.75% → $275.45
RetiroLSS Art. 168 I$524.66 × 300% → $0.002% → $314.79
Cesantía y vejezLSS Art. 168; 2020 decree transitional Art. 2, 2026$524.66 × 301.125% → $177.077.513% → $1,182.53
Guarderías y prestaciones socialesLSS Art. 211$524.66 × 300% → $0.001% → $157.40
Riesgos de trabajoLSS Arts. 71–74$524.66 × 300% → $0.000.54355% → $85.55

Estimates exclude collective agreements, court awards, special regimes and annual tax reconciliation.

Labour rules (LFT)2026 ISR tariffs (SAT)

ISR tariff and employment subsidy

SAT RMF 2026 Anexo 8 (https://www.sat.gob.mx/minisitio/NormatividadRMFyRGCE/documentos2026/rmf/anexos/Anexo-8-RMF-2026_DOF-28122025.pdf) supplies the updated monthly, 15-day and 7-day tariffs under LISR Art. 96. The lower limit and fixed quota in the result identify the bracket used.

The 31 December 2025 employment subsidy decree (https://sidof.segob.gob.mx/notas/docFuente/5777649) sets the 2026 ceiling and percentages. For a short pay period, use the actual calendar-month taxable income when known.

IMSS and UMA

LSS (https://www.imss.gob.mx/sites/all/statics/pdf/leyes/LSS.pdf) sets employee quotas, the contribution base and the minimum-wage employer assumption. INEGI UMA values (https://www.inegi.org.mx/temas/uma/) change on 1 February, so January uses the preceding UMA.

The CONASAMI resolution (https://dof.gob.mx/nota_detalle_popup.php?codigo=5775534) sets daily 2026 minimum wages of MXN315.04 generally and MXN440.87 in the northern border zone. Professional minimum wages are outside this estimate.

How to use it

  1. Enter gross pay for the selected period and a 2026 payment date.
  2. Choose monthly, 15-day quincenal or 7-day weekly pay, then enter benefits or the daily SBC from your payslip.
  3. Read the tax bracket, subsidy, employee IMSS quotas and net pay; copy, download or print the breakdown.

Privacy & limitations

Your salary, dates and employer totals stay in your browser. Nothing is uploaded.

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Frequently asked questions

Were the ISR tables updated for 2026?

Yes. RMF 2026 Anexo 8 publishes new monthly, 15-day and 7-day tables. Each preset uses its published tariff, rather than dividing the monthly ISR by two or four.

How is the monthly subsidy applied?

The income ceiling is MXN11,492.66. January uses 15.59% of the January UMA monthly value; February onwards uses 15.02% of the new UMA. The credit cannot exceed ISR and unused credit is not paid in cash. For submonthly pay, the allowance is prorated by period days divided by 30.4.

Can I calculate quincenal or weekly pay?

Choose the matching preset and enter that period’s gross salary. Your input is retained when you switch. For subsidy eligibility the tool projects the calendar month unless you enter the actual month total. Payroll must reconcile all payments and the subsidy ceiling at month end.

Why can my payslip differ?

Actual contribution days, variable salary, absences and other deductions can change net pay. The monthly IMSS example uses 30 days. Enter your payslip’s daily SBC for a closer comparison; the minimum-wage-only option removes ISR withholding when its conditions hold.

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